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Finding the Fourth Proportional to 12,409.21, 18,582.99 and 8,694.01

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Solution

The fourth proportional to 12,409.21, 18,582.99 and 8,694.01 is: 13,019.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,409.21 : 18,582.99 = 8,694.01 : x
  2. Step 2: Convert to fraction form
    12,409.21/18,582.99 = 8,694.01/x
  3. Step 3: Cross multiply
    12,409.21x = 18,582.99 × 8,694.01
  4. Step 4: Simplify right side
    12,409.21x = 161,560,700.89
  5. Step 5: Solve for x
    x = 161,560,700.89/12,409.21
  6. Step 6: Final answer
    x = 13,019.42

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